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SM328BSystem video matrix PAL/NTSC


The video matrix SM328B offers a solution for the collection and management of images. It is capable of switching 32 video inputs to 8 independent outputs and activating 32 different synchronised sequences across several monitors, with day, night or holiday cycles. The matrix provides 32 alarm inputs and 8 relay outputs controlled by events or alarm contacts (alarm groups). Alarms can be reset through a keyboard, external contacts or automatic timed reset. The matrix can be easily configured through an OSD or through a PC.


2 Aux RS-485 lines output to control telemetry and other third parties devices

Privacy video masking function

4 RS-485 keyboard inputs RJ11 connectors (max. 8 keyboards)

Aux A can be used to connect more SM328B matrix in Master/Slaves or Parallel systems

VCR Trigger input to connect a time lapse VCR

On alarm: actions on monitors (sequences and cameras) and on telemetry (scan on home positions or patrol)


  • Max. 32 video inputs
  • 24 characters text identification for each camera
  • Max. 8 video outputs; one of these is optionally used for controlling the switching from video recorder
  • 32 independent automatic 32-step sequences
  • Max. 8 keyboards
  • Complete setup OSD or by PC software
  • Setup menu in four languages (Italian, English, French and German)
  • Video signal masking on fixed camera for privacy purposes
  • Camera exclusion feature if monitor is displayed in public areas
  • On alarm:ᅠ ᅠactions on monitors (sequences and cameras recall) and telemetry (scan on Home position or Patrol)
  • Telemetry control on RS485 auxiliary line and on coaxial cable
  • Complete event log channel
  • Easy matrix control by PC
Date and time
  • 3 time ranges: day, night or holidays
  • At a weekly level, single days show 4 different time of starting/ending the daily sequence
  • Management of 16 days for variable holidays
  • Management of 8 closing terms
  • Automatic management of daylight saving time (automatic for Europe/America/etc. and user defined)
Time events
  • 64 time events max within 24 hours which allows:
  • enable/disable keyboards
  • enable/disable alarm contacts
  • enable/disable single relays
  • 24 characters alarm message per contact out of 32 contacts
  • 32 alarm contacts, which can be configured one by one, 4 types of reset per contact:
  • Time automatic reset, from 1 second to 1 hour from the contact enabling
  • Reset from keyboard, after the authorised operator has entered a password
  • External reset, after closing one contact
  • Automatic reset for continual type alarm contacts, when the alarm signal stops
  • When an alarm is enabled, each output can independently proceed to acknowledge it (by selecting a cycling sequence or a fixed camera) or neglect it
  • Alarm contacts are selectable as NO or NC and are acknowledged based the enabling time range (day, night, or their combination)
  • The alarm contacts can be enabled/disabled even from a time event. Priority management based on the acknowledgement order, in case of multiple alarms. Warning buzzer and management of 8 relays on alarm
  • On alarm action on monitors (sequences and cameras) and on telemetry receivers (scan or home position or patrol)
System security
  • Optional management of videoloss and videotape video recorder
  • Keyboards can be time enabled/disabled based on the prescriptions of the matrix configuration
  • Trigger VCR and some DVR management
  • Supplied with instruction manual, 1 power cable, 1 serial cable 9 pins, 2 DB25 connectors, set-up disk, power supply
  • Steel enclosure
  • Epoxypolyester powder painting, RAL7036 and black colours
  • Dimensions:ᅠ ᅠ2U, 180x430x94mm (7x17x3.7in) Rack 19”
  • 2 DB25 connectors (alarms and relays)
  • 6 RJ11 connectors (4 RJ11 for keyboards and 2 RJ11 for telemetry line)
  • 1 DB9 female connector (PC and serial printer)
  • Power supply jack-connector
  • 32 BNC video inputs
  • 8 BNC video outputs
  • 2 BNC connectors (VCR trigger and alarms reset)
  • Unit weight:ᅠ ᅠ5kg (11lb)
  • External wide range power supply
  • IN 100-240Vac - OUT 12Vdc, 47/63Hz, 2A
  • Consumption:ᅠ ᅠ24W
  • 32 inputs 75 Ohm 1Vpp (PAL/NTSC)
  • 8 outputs 75 Ohm 1Vpp (PAL/NTSC)
  • Bandwidth:ᅠ ᅠ> 6MHz
  • Lower cut-off frequency: (-3dB):ᅠ ᅠ9Hz
  • Signal/noise ratio:ᅠ ᅠ>47dB@5.5MHz
  • Relay contacts:ᅠ ᅠ50Vac/dc 0.5A max
  • Telemetry Line
  • PELCO D (2400, 4800, 9600, 19200 baudrate)
  • VIDEOTEC (1200, 9600 baudrate)
  • VIDEOTEC MACRO (1200, 9600, 19200, 38400 baudrate)
  • PELCO is registered trademark.
  • The product may be interfaced with devices not manufactured by VIDEOTEC.ᅠ ᅠIt is possible that the interface protocols have changed or are in a different configuration from earlier tested units by VIDEOTEC.ᅠ ᅠVIDEOTEC recommends a test prior to installation.ᅠ ᅠVIDEOTEC will not be liable for any installation costs or lost revenues in the event a compatibility problem will occur.
  • 4 serial inputs RS485 for the reception of data from max 8 remote keyboards at a max distance of 1200m (3900ft)
  • 2 auxiliary RS485 lines outputs for telemetry and other devices control at a max distance of 1200m (3900ft). Auxiliary A can be used to connect more matrix in master-slave or parallel systems
  • Serial input PC RS232 at a max distance of 15m (49ft) for matrix set-up, loading configuration from matrix to PC for analyzing the current settings and matrix control
    • For installation indoors
    • Operating temperature:ᅠ ᅠ0°C / +45°C (+32°F / +113°F)
    • Electrical safetyᅠ ᅠ(CE):ᅠ ᅠEN60950-1
    • Electromagnetic compatibilityᅠ ᅠ(CE):ᅠ ᅠEN50130-4,ᅠ ᅠEN55022ᅠ ᅠ(Class B),ᅠ ᅠFCC Part 15ᅠ ᅠ(Class B)
    • EAC certification
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